2² × 5 × 7 × 397

Prime Factor Structure

Factorization String 2^2 × 5 × 7 × 397

Distinct Prime Factors 4

Square Status No

Abundance Measure Abundant

Analytical Properties

Total Divisors 24

Divisor Sum (σ) 133,728

Proper Divisor Sum 78,148

Digit Sum / Digital Root 23 (Root: 5)

Adjacent Primes #55579 ← → #55589

1 2 4 5 7 10 14 20 28 35 70 140 397 794 1,588 1,985 2,779 3,970 5,558 7,940 11,116 13,895 27,790 55,580

Iterative sequence n → n/2 (if even) or 3n+1 (if odd):

55,580 27,790 13,895 41,686 20,843 62,530 31,265 93,796 46,898 23,449 70,348 35,174 17,587 52,762 26,381 79,144 39,572 19,786 9,893 29,680 14,840 7,420 3,710 1,855 5,566 2,783 8,350 4,175 12,526 6,263 18,790 9,395 28,186 14,093 42,280 21,140 10,570 5,285 15,856 7,928 3,964 1,982 991 2,974 1,487 4,462 2,231 6,694 3,347 10,042 5,021 15,064 7,532 3,766 1,883 5,650 2,825 8,476 4,238 2,119

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